diff --git a/advlabdb/config.py b/advlabdb/config.py
index 2eb01fa..1106ead 100644
--- a/advlabdb/config.py
+++ b/advlabdb/config.py
@@ -81,4 +81,5 @@ def set_config(app, data_dir: Path):
     }
     app.config["SECURITY_PASSWORD_SALT"] = secrets["SECURITY_PASSWORD_SALT"]
     app.config["SECURITY_PASSWORD_LENGTH_MIN"] = settings.getint("SECURITY_PASSWORD_LENGTH_MIN", 15)
+    app.config["SECURITY_POST_LOGIN_VIEW"] = "/post-login"
     # TODO: app.config["SECURITY_LOGIN_USER_TEMPLATE"] =
diff --git a/advlabdb/routes.py b/advlabdb/routes.py
index 49d248e..7db5a08 100644
--- a/advlabdb/routes.py
+++ b/advlabdb/routes.py
@@ -25,6 +25,39 @@ def index():
     else:
         return redirect(url_for("security.login"))
 
+    url = url_for(endpoint_base + ".index")
+
+    return redirect(url)
+
+
+@bp.route("/post-login")
+@auth_required()
+def post_login():
+    current_active_semester = current_user.active_semester
+
+    if current_active_semester.done:
+        last_semester = Semester.lastSemester()
+
+        if not last_semester.done:
+            try:
+                current_user.active_semester = last_semester
+
+                db.session.commit()
+            except Exception as ex:
+                flash(str(ex), "error")
+
+                db.session.rollback()
+            else:
+                flash(
+                    f"Active semester changed to {last_semester} because the semester {current_active_semester} was marked as done!",
+                    "warning",
+                )
+
+    if current_user.has_role("admin"):
+        endpoint_base = "admin"
+    else:
+        endpoint_base = "assistant"
+
     if current_user.login_count == 1:
         url = url_for(endpoint_base + "_docs.index")
     else: